Question about Rheem 40 GAL ELEC TALL Water Heater 6YR SC 82VH402

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How do I test the circuitry? - Rheem 40 GAL ELEC TALL Water Heater 6YR SC 82VH402

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Basically you ned to see if you are drawing 240 volts dc. use a volt meter at the electrical connection

Posted on Jan 07, 2010

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1 Answer

The red light is on,but there is no hot water.What can I do?


get an electrician in to run checks on the elements and circuitry

Jul 12, 2016 | Water Heaters

1 Answer

Disconnected condensation drain on hot water heater.


Tankless or hybrid water heater?

Tankless gas must have special fitting between water heater and vent that has a condensate line fitting. Hot toxic vent gasses traveling up vent pipe cause acidic water vapor to form inside vent pipe that drips back down vent and drips onto heat exchanger and other parts eventually burning hole through expensive metal alloy heat exchanger, rendering tankless computer water heater useless after electric circuitry gets wet and shorts out.
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html#vent

Hybrid or heat pump type computer water heaters must have condensate drain connected to catch pan located just above storage tank and below compressor. Condensation can form on condenser coils and drip into catch pan where there is primary and secondary drain
http://waterheatertimer.org/Review-GE-Heat-Pump-water-heater.html#maintenance

Read product manual
Gene
h

Apr 17, 2014 | Water Heaters

1 Answer

How to test electric water heater thermostats


1) Copy following links:
http://waterheatertimer.org/How-to-test-water-heater-thermostats.html
http://waterheatertimer.org/How-to-troubleshoot-electric-problems-with-water-heater.html

2) There is no reliable way to test electric water heater thermostats.
This is because testing requires rotating the temperature selector, which may cause stuck-thermostat to temporarily unstick. So thermostat appears to work normally.
Moreover, thermostat come out of calibration over time, and the temperature selector might be on 125 but tank temperature at 100, and there is no specific way to measure calibration.
http://waterheatertimer.org/How-to-replace-thermostat-on-electric-water-heater.html

3) I think it easier to replace both upper and lower thermostats to eliminate them as suspects when diagnosing wide-range of electric water heater problems.

Dec 07, 2012 | RELIANCE ELECTRIC WATER HEATER

1 Answer

Can I run the hot water heater with a generator


Yes.
Ordinary electric water heater can run on any voltage from any direction (excluding volt/amp ratings below what can heat element coil).

Voltages include single-phase, split phase, and 3-phase residential/commercial voltages with either 50 or 60 Hz.
http://waterheatertimer.org/How-to-wire-water-heater-for-120-Volt.html
http://waterheatertimer.org/How-to-wire-water-heater-thermostats.html#3-phase

Install line fuse.
30 amp fuse would be required to prevent wires from overheating, and eliminate fire hazard.

This information does NOT apply to energy-smart electric water heater with box on top of heater, or newer energy smart with electronics, or to hybrid water heaters, or heat pump water heaters with delicate electronic circuitry.

Why it works like this:
Ordinary electric water heater thermostats are mechanical bi-metal switches and respond to tank temperature, and are not operated by electricity.
Ordinary generic elecrtic water heater thermostats switch electricity on-off using mechanical bi-metal switch.
Heat elements are simple coil of thermal wire that gets hot when voltage is applied.
The element will get hot when power is applied.

Oct 29, 2012 | Rheem 40 GAL ELEC TALL Water Heater 6YR SC...

1 Answer

Reset button needs to be hit then water gets extremely hot and reset button needs to be hit again.


The reset button or ECO (emergency cut-off) is a safety device.
The ECO trips and cuts off power to entire water heater when it detects temperatures over 150 degrees.
This prevents overheating and eventual explosion of water heater.

You have 1 of 3 problems:
a) Factory-installed insulation and cover have been removed and thermostat is receiving cool air and not reading correct temperature
b) Bad thermostat. Thermostat is sticking in ON position -or- thermostat is misreading temperature.
c) Element is shorted to ground near center of element and not tripping breaker, and the element is heating off 120 circuit that is flowing through ground wire.

Steps you can take:
1) Inspect water heater and see if factory insulation is present behind each cover.
2) Turn off power.
Disconnect ground wire for a couple days and see if problem persists.
If problem stops, then test elements and replace bad one. See below for how to test element.
Caution: Do not touch this water heater with ground wire disconnected unless power is OFF
3) Replace thermostats and see if problem persists.
For around $25, you can buy generic upper-and-lower thermostats at Lowes or hardware store > then replace the thermostat(s) and see if problem persists.
http://waterheatertimer.org/How-to-replace-thermostat-on-electric-water-heater.html
http://waterheatertimer.org/How-to-replace-water-heater-element.html

Problem should be resolved.

4) If problem continues after steps above
You will need to test water heater parts to track down the exact problem: for example a shorted wire.
You need a inexpensive multimeter from Radio Shack, and the steps are simple, and afterward you will know nearly everything about electric water heater.
http://waterheatertimer.org/How-to-troubleshoot-electric-water-heater.html

How to test element:

http://waterheatertimer.org/How-to-test-water-heater-element.html
Turn off power.
Remove both wires from lower element.
Test across both screws with a continuity tester.

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The continuity tester has a battery and when light comes on, it says the circuit is complete.
Test1) Test across both screws on lower element with continuity tester.
If the light comes on then the element is good so far, but element has to pass one more test.
Test2) Test each screw on element to any bare metal part of water heater.
If the light does NOT come on with the second test, then element is good.
Light ON first test. Light OFF second test. Then element is probably good.
This is not 100% fail-proof test without a meter but it is a good indicator.

If you are still having a problem, answer back and we'll give you more details.


Oct 25, 2010 | Reliance & 50gal Electric Water Heater

1 Answer

Installed new upper & lower elements & thermostats, only top htr works


If original problem was caused by sediment burning out lower element, did you clean sediment out of water heater when changing lower element?
Two element water heaters are 240V.
Thermostats cut power on one hot wire, but 240V circuit has 2 hot wires. So lower element has power at all times coming from the red wire.
1) Use ordinary tester or multimeter set to 240V <> test each screw of lower element to bare metal part of water heater. Each screw should show 120V. If there is no power, then upper thermostat is defective, screw on upper thermostat is loose, or red wire between upper and lower parts of water heater is bad.
2) Remove wires from lower element. Use continuity tester or multimeter set to ohms <> test across both screws of element to see if power travels through element <> if element is bad, then continuity tester will not light up and multimeter will show no ohms. Put wires back on element after test.
3) Start with cold water in tank. Turn on water heater & upper element will turn on. Put ear on side of tank to hear if upper element is heating water. Test #3 screw to #2 screw on low left side of thermostat, should read 240V > Test #3 screw to #4 screw on low right side of thermostat, should read 0V.
Put ear on side of tank. When upper element turns off: Test #3 screw to #2 screw on low left side of thermostat, should read 0V > Test #3 screw to #4 screw on low right side of thermostat, should read 240V. If this test shows 0V and 0V, then upper thermostat is bad. If reading is correct, immediately move to next test.
http://waterheatertimer.org/images/Thermostats-numbered-divided-500.jpg
4) Turn temp on lower thermostat to 150. Using ordinary tester or multimeter set to 240V <> Test across both screws of lower element. If there is no reading, and you know element is good from step 2, then lower thermostat is bad, or wire is bad between lower element and lower thermostat, or wire is bad between lower thermostat and top part of heater.
5) Test across both lower thermostat screws, should read 240V.If this test is good, it means wires are good. Put jumper wire across both screws of lower thermostat, and test lower element again. If element finally turns on with jumper wire, then lower thermostat is bad.
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http://waterheatertimer.org/How-to-troubleshoot-electric-water-heater.html

If wire is bad between upper and lower parts of water heater, and water heater has tight-fitting 2" foam insulation, it usually indicates water heater replacement.

Sep 20, 2010 | Rheem 50 GAL ELEC TALL Water Heater 6YR SC...

2 Answers

Test procedure for elements and thermostat


Remove upper and lower access panels
in upper access, use voltage tester to test voltage of on the uppermost terminals above the red reset button. should be ~220V between terminals (110 to ground)
If not: breaker off or bad,
If 220V proceed:
Test the two terminals immediately below this reset button should be 220V
If not: reset tripped or bad
If 220V present, proceed.
Turn off breaker to heater.

Use ohm meter or continuity tester.
test resistance across upper element terminals -should be 10 to15 ohms
check between each terminal and ground -should be open circuit .
If not replace element
Repeat for lower element.

test across lower element thermostat should be no resistance when stat turned up so it clicks on.
(To test that lower stat turns off, allow tank to heat up completely before conducting this test) Turn sta temp down so it clicks off then test across stat terminals -should be open circuit

The upper thermostat is a 3 way switch
The simplest way to test it is to turn the power back on turn the upper stat all the way up so it clicks on and use voltage tester across the UPPER element terminals, should be ~220V
Now turn the upper stat down so it clicks off- check upper element should be 0 V between upper element terminals -(Caution ! terminals will still be live 110V to ground)
The upper stat has now sent power to lower stat.
Turn lower stat up so it clicks on, check Voltage across lower element -should be ~220V turn lower stat down so clicks off, should be 0 V across lower element terminals.

NOTE If tank is completely cold the upper stat will not switch off and wont send power to lower stat.
If lower tank is cold lower stat may not click off even when turned down.
normal stat setting is 125 to 130
The hotter you you set the stat, the faster your tank corrodes.

Apr 09, 2010 | Rheem 40 GAL ELEC TALL Water Heater 6YR SC...

1 Answer

Water in dishwasher will not heat up


Hi...

Try to do this

Regards
PCmania

Jul 08, 2009 | Whirlpool Dishwasher Water Heater...

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